Question2Answer fatal error:

Class for layer must be declared as "class qa_html_theme_layer extends qa_html_theme_base" in /home/avukata/public_html/qa-plugin/chatgpt-answer-generator/qa-chatgpt-answer-generator-layer.php

Stack trace:

require() in index.php:27
require() in qa-index.php:189
qa_output_content() in qa-page.php:53
qa_load_theme_class() in page.php:353